The Research And Application Of Numeral Image Manipulation Technology About Dynamic Displacement

Dynamic displacement information of structure is very important rude date in structure testing and analysis, it is also the difficulty of structure detection and the research hotspot in engineering area. All kinds of traditional methods about displacement detection to dynamic object have their localization, it is hard to find fixed reference point. So it is very necessary to develop a kind long distance and untouched detection system which can record date by itself and deal with a series of date in time. This paper discusses a measure method of numeral image manipulation technology to inspect the dynamic displacement of project structure. Photogrammetry is a kind of important method to get space information without touch, and the development of the numeral image manipulation technology urge the development of the technology about getting space information and dealing information. Apply this technology to civil engineering measure, we can gather and deal with the dynamic information in time, thereby it can realize the intellectualized evaluation about structure diagnoses. This paper consummate a kind measure method of numeral image manipulation technology to inspect the dynamic displacement of project structure. First we put CCD vidicon on fixed point, gather the video picture of sign point on dynamic measured structure by picture gathering card. Second convert dynamic numeral image to series static numeral image list using numeral video frequency soft. Use the soft we ameliorated demarcate one frame. The soft can deal with image list frame by frame by itself. Then we get the coordinate data of dynamic aim point. At last deal with the data to get the movement cure of aim point. In this way we carry out measure of dynamic displacement. We had proved this method was a kind of handy and effective measure method by static experiment,dynamic experiment and several actual projects.